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ParallelUctSearchError

infotheory::aixi::mcts

Enum ParallelUctSearchError 

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pub enum ParallelUctSearchError {
    PositiveSamplesRequirePositiveHorizon,
}
Expand description

Search-time errors for ParallelUctPlanner::search.

These are contract violations detected at the public boundary before any rollout work is dispatched.

Note that samples == 0 is always accepted (even when agent.horizon() == 0): the retained root is pruned to the supplied percept history and an action is selected from whatever completed root statistics are already available. If no completed root action values exist (e.g. on a fresh tree), the returned action is chosen uniformly at random from the action alphabet.

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PositiveSamplesRequirePositiveHorizon

samples > 0 was requested but agent.horizon() == 0.

A positive simulation budget over a zero-step horizon has no well-defined rollout depth, so the planner refuses the call rather than silently returning an arbitrary action.

Trait Implementations§

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impl Clone for ParallelUctSearchError

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fn clone(&self) -> ParallelUctSearchError

Returns a duplicate of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ParallelUctSearchError

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Display for ParallelUctSearchError

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Error for ParallelUctSearchError

1.30.0 · Source§

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any. Read more
1.0.0 · Source§

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

Read more
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fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

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fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)
Provides type-based access to context intended for error reports. Read more
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impl PartialEq for ParallelUctSearchError

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fn eq(&self, other: &ParallelUctSearchError) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl Copy for ParallelUctSearchError

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impl Eq for ParallelUctSearchError

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impl StructuralPartialEq for ParallelUctSearchError

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